Surface functionalization of cellulose derived from hemp by tetraethyl orthosilicate (TEOS) and poly vinylidene fluoride (PVDF)-based composite separator membrane for lithium-ion batteries (LIBs)

Thanakrit Sirichaibhinyo; Satita Thiangtham; Nagahiro Saito; Sarute Ummartyotin

Results in Engineering (Sep 2024)

Surface functionalization of cellulose derived from hemp by tetraethyl orthosilicate (TEOS) and poly vinylidene fluoride (PVDF)-based composite separator membrane for lithium-ion batteries (LIBs)

Thanakrit Sirichaibhinyo,
Satita Thiangtham,
Nagahiro Saito,
Sarute Ummartyotin

Affiliations

Thanakrit Sirichaibhinyo: Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Patumtani, 12120, Thailand
Satita Thiangtham: Center of Excellent in Sustainable Engineering, Mahanakorn University of Technology, Bangkok, 10530, Thailand; Mahanakorn University of Technology International College, Mahanakorn University of Technology, Bangkok, 10530, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand; Corresponding author. Centre for Advanced Materials and Environmental Research, Mahanakorn University of Technology, Bangkok, 10530, Thailand.
Nagahiro Saito: Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
Sarute Ummartyotin: Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Patumtani, 12120, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand; Corresponding author. Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Patumtani, 12120, Thailand.

Journal volume & issue: Vol. 23
p. 102807

Abstract

Read online

Separators play a crucial role in enhancing the electrochemical performance of lithium-ion batteries (LIBs). However, achieving separators with exceptional electrochemical performance and high stability remains a significant challenge. In this study, we meticulously designed composite membranes based on polyvinylidene fluoride (PVDF) with varying contents of microcrystalline cellulose/tetraethyl orthosilicate (MCC/TEOS). The increase in hydrophilicity of PVDF by adding MCC-TEOS weight contents endowed the 3 wt% MCC/TEOS-based PVDF separator membrane with superior electrolyte absorption and reduced resistance, resulting in an impressive ionic conductivity of 0.514 mS/cm higher than the pristine PVDF membrane (0.253 mS/cm). Furthermore, the LIB cell utilizing the 3 wt % MCC/TEOS-based PVDF separator membrane consistently demonstrated stable charge/discharge profiles at a rate of 0.2C, achieving a specific capacity of 98 mAh/g, compared to only 43 mAh/g for the pristine PVDF membrane. These findings underscore the significant potential of MCC/TEOS as a biofiller for bio-membranes, making it an optimal choice for applications in LIBs.

Published in Results in Engineering

ISSN: 2590-1230 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology
Website: https://www.journals.elsevier.com/results-in-engineering

About the journal

Abstract

Keywords